The Ross Sea, Antarctica is the most pristine stretch of ocean on Earth. A vast, frozen landscape that teems with life - whales, seals and penguins carving out a place on the very edge of existence. Californian ecologist David Ainley has been traveling to the Ross Sea to study this unique ecosystem for more than thirty years. He has written scientific papers describing it as a 'living laboratory'. Largely untouched by humans, it is one of the last places where the delicate balance of nature prevails. But an international fishing fleet has recently found its way to the Ross Sea. It is targeting Antarctic toothfish, sold as Chilean Seabass in up-market restaurants around the world. The catch is so lucrative it is known as white gold. Ainley knows that unless fishing is stopped the natural balance of the Ross Sea will be lost forever. He rallies his fellow scientists...